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Question PC cuts off and reboots randomly, after buying RTX 2080ti, during gaming

Jul 9, 2020
I recently bought an RTX 2080ti, and I now seem to have an issue where my PC turns off and reboots mostly whilst I am playing games. This never happened when I had a GTX 980.

I have tried running 3D Mark to stress test it, and it never seems to crash or get hot. And I have attempted to monitor the temperature during gaming, using speccy, but I cannot keep an eye on it before it crashes due to only having one monitor, and having no idea when it is going to crash.

I have also increased the graphics card fan speed using EVGA precision X1, but I still have the issue.

My PC specs are:
Operating System: Windows 10 Home 64-bit
CPU: Intel Core i7 4790K @ 4.00GHz: 33 °C Haswell 22nm Technology with a Corsair Liquid Cooler
RAM: 16.0GB Dual-Channel DDR3 @ 799MHz (11-11-11-28)
Motherboard: Gigabyte Technology Co. Ltd. Z97X-Gaming G1 WIFI-BK (SOCKET 0): 40 °C
Graphics: XB321HK (3840x2160@60Hz)
Intel HD Graphics 4600 (Gigabyte)
3071MB NVIDIA GeForce RTX 2080 Ti FTW3 (EVGA): 37 °C

ForceWare version: 445.75
SLI Disabled
Storage: 476GB Crucial_CT512MX100SSD1 (SATA (SSD)): 37 °C
931GB Western Digital WDC WD10EZRX-00L4HB0 (SATA ): 31 °C
465GB Seagate ST9500325ASG (SATA ): 31 °C
465GB Hitachi HTS545050A7E380 (SATA ): 31 °C

Optical Drives: ASUS BC-12D2HT
Audio: Sound Blaster Recon3D
PSU: Corsair CP-9020099-UK CX850M 850 W 80 Plus Bronze Certified Modular ATX 135 mm
Tower Case: Corsair Obsidian Series 750D ATX Full Tower Performance Windowed Computer Case
Jul 9, 2020
every time I got that problem it was the PSU or the GPU being faulty or overheating.
try to check the temps again while gaming, anything under 100 degrees should not be rebooting ur pc, oh and also try with the side panels off and if you have a front one that is removable do that too.
and since it works with your other gpu, its probably not the psu since its a good model and more than enough watts but then again your older gpu has a much lower tdp, if you had it for a longer time it might have aged badly :p
there isn't much you can do by yourself here, if you find out the gpu is the problem send it back, if not then get the pc to a service.